为你解答.
I think this maths problem is (c. much easier) than that one. What do you think of it? I agree with you.
我认为这道数学题比那道容易多了.你觉得呢? 我同意.
解释：这句话是两者作比较,用形容词的比较级.very不能修饰比较级,但much可以,意为“……得多”.